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FRV Clupea 0401C

Cruise summary report

Cruise Info. 
Ship name (ship code)FRV Clupea (74CU)
Cruise identifier0401C
Cruise period2001-03-05 — 2001-03-16
StatusCompleted
Port of departureFraserburgh, United Kingdom
Port of returnFraserburgh, United Kingdom
Objectives1) To lay three hydrographic monitoring moorings, one near the Stonehaven transect and two in the Wee Bankie/Marr Bank study area.
2) To conduct a hydrographic survey along a transect offshore of Stonehaven. At preselected locations the Seabird CTD sampler and the dual Bongo net will be deployed using a vertical dip. Water samples will be collected for salinity, nutrient and phytoplankton analysis. The 1 m plankton net will be deployed using a double oblique tow between selected stations along the transect.
3) To investigate the density distribution of sandeels buried in the sediment by carrying out a nocturnal stratified random Day grab survey across the Wee Bankie/Marr Bank study area. All sandeels caught will be measured, weighed and have their otoliths collected.
4) To investigate variation in sandeel population age structure at different locations on the Wee Bankie and Marr Bank from samples collected using the Sandeel dredge.
5) To determine spatial variation in water temperature and salinity across the Wee Bankie/Marr Bank study area using a Seabird CTD sampler. Approximately 40 vertical dip stations will be sampled utilising as far as possible the day grab survey stations.
Chief scientistSimon Greenstreet (Fisheries Research Services Aberdeen Marine Laboratory)
Cruise reportFRV Clupea 0401C cruise report 0401c.pdf (2.29 MB) 
Ocean/sea areas 
GeneralNorth Sea
SpecificWee Bankie, Marr Bank, Berwick's bank and off Stonhaven
Track chartsFRV Clupea 0401C cruise track — 0401ctrack.pdf (1.23 MB) 
Measurements 
Physical oceanography 
Water bottle stationsQuantity: number of stations = 13
Description: Stonehaven transect CTD and water sample stations, Plankton trawls using dual Bongo net
CTD stationsQuantity: number of stations = 13
Description: Stonehaven transect CTD and water sample stations, Plankton trawls using dual Bongo net
Biology and fisheries 
PhytoplanktonQuantity: number of stations = 13
Description: Stonehaven transect CTD and water sample stations, Plankton trawls using dual Bongo net
ZooplanktonQuantity: number of stations = 13
Description: Stonehaven transect CTD and water sample stations, Plankton trawls using dual Bongo net
Demersal fishQuantity: number of samples = 250
Description: Day grab and dredge survey of sand eels
Geology and geophysics 
GrabQuantity: number of samples = 250
Description: Day grab and dredge survey of sand eels
Moorings, landers, buoys 
Physical oceanography 
Current meters56° 14' 41" N  1° 59' 21" W — Deployed mooring (6 months) 1 Current meter and miniloggers (temperature recorders)
Current meters56° 14' 50" N  1° 59' 20" W — Deployed mooring (6 months) 2 Current meters and miniloggers (temperature recorders)
Current meters56° 14' 50" N  1° 15' 0" E — Deployed mooring (6 months) 2 Current meters and miniloggers (temperature recorders)